Poster + Presentation
22 August 2020 Three-dimensional sub-wavelength beam shaping in complex counter-propagating light fields
Ramon Runde, Eric Asché, Eileen Otte, Cornelia Denz
Author Affiliations +
Conference Poster
Abstract
Tailored light represents a fundamental tool for complex optical tweezing and micromanipulation. Despite many successful applications, there is still unexploited potential in fully structuring amplitude, phase and polarization. This is especially true if multiple spatial degrees of freedom are combined as e.g. the transverse plane as well as longitudinal extent, leading to three-dimensional (3d) volumes. This gives easy access to versatile features as spatio-temporal singularities or singularity networks in polarization landscapes. Within this contribution, we employ two fully-structured counter-propagating light fields to enable 3d beam shaping in amplitude, phase and polarization with a sub-wavelength resolution and a dynamic exchange between phase and polarization singularities upon propagation.
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ramon Runde, Eric Asché, Eileen Otte, and Cornelia Denz "Three-dimensional sub-wavelength beam shaping in complex counter-propagating light fields", Proc. SPIE 11463, Optical Trapping and Optical Micromanipulation XVII, 114631Z (22 August 2020); https://doi.org/10.1117/12.2570606
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KEYWORDS
Polarization

Beam shaping

Spiral phase plates

Structured light

Optical micromanipulation

Modulation

Optical tweezers

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